Andy and Terry live within the WORLD’S BEST treehouse! It has got an enormous catapult, a secret underground laboratory, a tank of man-eating sharks and a marshmallow machine that follows you around and shoots marshmallows into your mouth every time you are hungry! Just be careful for the ocean monkeys, and the monkeys pretending to be sea monkeys, and the giant mutant mermaid sea monster . . ., Oh, and, no matter what you do, do not get trapped in a burp-gas-filled bubble . . ., !Andy Griffiths and Terry Denton’s fantastically funny The 13-Storey Treehouse is told through a combination of text and caricature-style illustrations.